It is a Halloween version of the map Standoff, with pumpkins and lights scattered around the map. It also takes place at night as opposed to the typical day-time setting of Standoff.
On October 21, 2019, a playlist 24/7 was added with rotating modes: Team Deathmatch, Search and Destroy, Domination and Hardpoint. The playlist has been removed in November 4, 2019, but continued on normal playlists. The map has removed with Season 2 update on November 23, 2019.
In October 22, 2020, during Season 11 Anniversary update, Standoff Halloween come back during the Halloween period.  The map has removed with Season 12 Going Dark update on November 10, 2020.
In October 29, 2021, during Season 9: Nightmare update, Standoff Halloween came back during the Halloween period.  The map has removed on November 5, 2021.